Nonlocal Scalar Quantum Field Theory: Functional Integration, Basis Functions Representation and Strong Coupling Expansion

M. Bernard, V. A. Guskov, M. G. Ivanov +2

Nonlocal QFT of one-component scalar field $\phi$ in $D$-dimensional Euclidean spacetime is considered. The generating functional (GF) of complete Green functions $\mathcal{Z}$ as a f…